4 friends, Kent, Keller, Karmen and Klive are on a canoe trip. 2 canoes are floating down the river side by side, with 2 people in each canoe. In each canoe, the older person is in front of the younger one. Also:

Keller is sitting diagonal from KarmenThe Engineer & the Programmer are in the same canoeThe Secretary is sitting diagonal from KentThe Carpenter is sitting in front of KliveThe Engineer is younger than the ProgrammerKeller is not the Engineer